The author presents an analysis of the philosophical views of Alasdair MacIntyre. A distinctive feature of MacIntyre and one made manifest in his works, is his temperament, which is that of a philosophical radical. The attack he undertook on the liberal, individualist modernity which is unable to depart finally from the closed circle of the Enlightenment, belongs with the most radical and global of those articulated in the past few decades. At the same time, it numbers among the most intellectually weighty and ambitious and, in the author’s opinion, is not without some grounds, bearing in mind the disturbing processes which are genuinely underway.